256802910

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{863}}^1$

素因数の和:1002

約数の個数: 128

約数和(自身を含む): 766402560

約数和(自身を除く): 509599650

約数列:

[1, 2, 3, 5, 6, 7, 10, 13, 14, 15, 21, 26, 30, 35, 39, 42, 65, 70, 78, 91, 105, 109, 130, 182, 195, 210, 218, 273, 327, 390, 455, 545, 546, 654, 763, 863, 910, 1090, 1365, 1417, 1526, 1635, 1726, 2289, 2589, 2730, 2834, 3270, 3815, 4251, 4315, 4578, 5178, 6041, 7085, 7630, 8502, 8630, 9919, 11219, 11445, 12082, 12945, 14170, 18123, 19838, 21255, 22438, 22890, 25890, 29757, 30205, 33657, 36246, 42510, 49595, 56095, 59514, 60410, 67314, 78533, 90615, 94067, 99190, 112190, 148785, 157066, 168285, 181230, 188134, 235599, 282201, 297570, 336570, 392665, 470335, 471198, 564402, 658469, 785330, 940670, 1177995, 1222871, 1316938, 1411005, 1975407, 2355990, 2445742, 2822010, 3292345, 3668613, 3950814, 6114355, 6584690, 7337226, 8560097, 9877035, 12228710, 17120194, 18343065, 19754070, 25680291, 36686130, 42800485, 51360582, 85600970, 128401455, 256802910]

約数ペア:

[(1, 256802910), (2, 128401455), (3, 85600970), (5, 51360582), (6, 42800485), (7, 36686130), (10, 25680291), (13, 19754070), (14, 18343065), (15, 17120194), (21, 12228710), (26, 9877035), (30, 8560097), (35, 7337226), (39, 6584690), (42, 6114355), (65, 3950814), (70, 3668613), (78, 3292345), (91, 2822010), (105, 2445742), (109, 2355990), (130, 1975407), (182, 1411005), (195, 1316938), (210, 1222871), (218, 1177995), (273, 940670), (327, 785330), (390, 658469), (455, 564402), (545, 471198), (546, 470335), (654, 392665), (763, 336570), (863, 297570), (910, 282201), (1090, 235599), (1365, 188134), (1417, 181230), (1526, 168285), (1635, 157066), (1726, 148785), (2289, 112190), (2589, 99190), (2730, 94067), (2834, 90615), (3270, 78533), (3815, 67314), (4251, 60410), (4315, 59514), (4578, 56095), (5178, 49595), (6041, 42510), (7085, 36246), (7630, 33657), (8502, 30205), (8630, 29757), (9919, 25890), (11219, 22890), (11445, 22438), (12082, 21255), (12945, 19838), (14170, 18123)]